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Product Series of Automation-Related Precision Ball Screws and Linear Rails – High-Precision Ball Screws

NSK Bearings Tapered Roller Bearings 30208

Product Overview

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Tapered Roller Bearings/Bearings

30208

Tapered Roller Bearing

Bore d40 mm
Width T19.75 mm

Product Features

NSK tapered roller bearing (30208 series), model 30208: 40 mm bore, 80 mm OD, 19.75 mm width
Basic dynamic load rating Cr 78 kN, basic static load rating C0r 70 kN (NSK official catalog; current-generation equivalent HR30208J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 4800 min⁻¹ (grease), 6300 min⁻¹ (oil)
Carries combined radial load and axial load in one direction; inner and outer rings are separable for easy mounting and service
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	30208
Series	-	30208 series
Bore d	mm	40
Outer diameter D	mm	80
Width T	mm	19.75
Min. chamfer r	mm	1.5
Basic dynamic load rating Cr	kN	78
Basic static load rating C0r	kN	70
Limiting speed (grease)	min⁻¹	4800
Limiting speed (oil)	min⁻¹	6300

Product Description

The 30208 is an NSK tapered roller bearing from the 30208 series: 40 mm bore, 80 mm outer diameter, 19.75 mm width. Tapered roller bearings use a tapered inner ring, rollers and outer raceway so a single bearing carries combined radial load and axial load in one direction; inner and outer rings are separable, giving flexible mounting and clearance adjustment. Basic dynamic load rating Cr is 78 kN and basic static load rating C0r is 70 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30208J, Cr/C0r figures above are taken from that current design).

Inquiries & customization

Add this part number to your inquiry list — Nahshon is NSK's distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.